Am 19.04.2010 05:30, schrieb var@xxxxxxxxxxxxxxx:
>>
Why do you want to this? This pure native thing doesn't really sound
production ready and Java/Native hybrids have a lot of disadvatages.
For a native >> application its more natural to use a native GUI
like qt or wxWindows, and I'm sure these frameworks (especially QT)
offer more than this native swt!
SWT C++ is not a Java/Native hybrid.
It is 100% native C++; it is not a C++ layer on top of the Java
runtime. Unlike certain other C++ toolkits, it is not a C++ layer on
top of a C foundation. It is C++ all the way through. In fact, it could
be considered more native than Qt because SWT C++ (and SWT Java) use
the Win32 platform's native widgets whereas Qt uses emulated widgets.
In addition, SWT C++ is built on standard C++ and does not depend on
C++ compiler extensions or non-standard preprocessors. It is a natural
experience for C++ developers. For example, on Windows, you can do
everything in Visual C++; there are no special build steps or extra
tools to run. Lastly, unlike much older C++ GUI toolkits, SWT C++ is
designed and implemented on modern C++ and standards-compliant C++
compilers. From the ground up, SWT C++ is designed to use "smart
pointers," templates, exception handling, and other C++ features that
were not chosen or not available when the older C++ GUI toolkits were
designed.
SWT C++ is a indeed new
toolkit. This new toolkit is also in its third major release.
-----
Original Message -----
Sent:
Thursday, April 15, 2010 3:35 AM
Subject:
Re: [platform-swt-dev] C++ Toolkit for SWT
Am 15.04.2010 09:19, schrieb Tech Id:
Wow!
That sounds great, Grant Gayed!
Thanks a lot for the link.
Just a few more doubts which I think you being an expert may
be able to shed light upon :)
(I am also saving myself going through lengthy docs as well
;) )
Please do help if you know.
1) We have already written a fair amount of code in SWT Java.
Can it be converted into C++ code by some Pure-Native tool?
2) After we have converted SWT Java code to C++ (by tool or
manually), we should need only a C++ lib of SWT C++ to link with along
with some headers. Is that correct? Please confirm.
Thanks again for the reply.
It really helped me.
Thanks
Techieeeeeeeee
On Thu, Apr 15, 2010 at 8:30 AM, <var@xxxxxxxxxxxxxxx>
wrote:
As mentioned below, the answer is Yes. It's called SWT C++
and it's a 100% native C++ implementation of SWT. It's produced
entirely from the SWT Java implementation. Basically, it is SWT Java
source code compiled to C++ source code instead of compiled to Java
bytecode. It is like another platform target for SWT: native C++,
requiring no JRE and no JNI. It is feature-for-feature, bug-for-bug,
and pixel-accurate to SWT Java. Presently, it is at SWT version 3.4.1
and only supported for Win32 desktop and Win CE (Pocket PC and Windows
Mobile), and Visual C++ 8.0 (Visual Studio 2005) and 7.1 (Visual Studio
2003). Visual C++ 9.0 (Visual Studio 2008) support is working but not
released. Other target OS platforms are being considered.
Regarding the use case " such that even the GUI elements
could be coded in C++ only," this is not supported out-of-the-box, and
we have not pursued this ourselves. That being said, by nature of SWT's
design, it should be entirely possible to re-host an SWT C++ control in
a SWT Java control or an Eclipse Workbench part (either a view or an
editor) along with a JNI wrapper for the SWT C++ control. It may even
be possible to do this without changing SWT C++ at all but no
guarantees. There's a good explanation of how to wrap a native Win32 or
Motif control as an SWT Java control along with JNI DLL on the Eclipse
Web site. See the headings " Wrapping
a Native Widget", "Windows
Native Code", and "Motif
Native Code" in the following article:
----- Original Message -----
Sent: Wednesday, April 14, 2010 12:44 PM
Subject: Re: [platform-swt-dev] C++ Toolkit for
SWT
First to answer your question, there is a project at http://www.pure-native.com/
that takes an SWT release and converts it to C++ for use in C++ apps
(note: win32 only).
However, if I understand your question correctly, you'll be
writing/re-writing your UI in SWT from scratch, and you want your app
to run as an eclipse plug-in, right? If so, I would suggest writing
your UI using SWT's java implementation. This will make the
integration of your UI into eclipse straight-forward, and will be
cross-platform. You would then use JNI to interact with the
application logic that you want to preserve from your existing C++ app.
Grant
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Why do you want to this? This pure native thing doesn't really sound
production ready and Java/Native hybrids have a lot of disadvatages.
For a native application its more natural to use a native GUI like qt
or wxWindows, and I'm sure these frameworks (especially QT) offer more
than this native swt!
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platform-swt-dev mailing list
platform-swt-dev@xxxxxxxxxxx
https://dev.eclipse.org/mailman/listinfo/platform-swt-dev
Sorry you misunderstood me. I think using Java-SWT is not a good idea
cause the result will be a hybrid and C++-SWT because, on the one hand,
it looks too young and on on the other, there are much better
UI-Frameworks in C++. Sorry but I think SWT is a API-Design
Anti-Pattern. In QT, I have to write 10 lines; for the same thing I
write 100 lines in SWT. But yes, C++-SWT seems to be lighttweight....
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